tromp / ChessPositionRanking

Software suite for ranking chess positions and accurately estimating the number of legal chess positions
MIT License
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1KNr2B1/1Rn2q1Q/P1P5/2b1Qr2/k3N2b/2q1Rnqb/2Nb1Brq/NQ6 w - - 0 1 #254

Closed tromp closed 3 years ago

tromp commented 3 years ago

1KNr2B1/1Rn2q1Q/P1P5/2b1Qr2/k3N2b/2q1Rnqb/2Nb1Brq/NQ6 w - - 0 1

img

No Checks wx 2 wp 2 wpr 4 wpx 2 maxuwp 2 minopp 0 bx 2 bp 0 bpr 6 bpx 2 maxubp 0 minopp 0

Legal with axPb b1q b1q cxPd d1q d1r expf e1b f8Q f8Q gxph g1b h8N h8N

Proof Game Requested.

rooklift commented 3 years ago
1. b4 a5 2. a4 axb4 3. c4 b3 4. Nc3 b2 5. Na2 b1=Q 6. a5 Qg6 7. c5 b5 8. Nb4 Ra6
9. Nd3 Rf6 10. Qb3 b4 11. Kd1 Nc6 12. Kc2 Ne5 13. Qd5 Ng4 14. Kb3 Ne5 15. Ka4
Ng4 16. Kb5 d6 17. Bb2 Bd7+ 18. Ka6 Bc8+ 19. Ka7 Qd7 20. Kb8 Qdf5 21. Qe5 Kd7
22. Qd4 Kc6 23. Rc1 Kb5 24. Rc4 Ka4 25. Qd5 N8h6 26. Rf4 Ng8 27. Rf3 b3 28. Bc3
b2 29. Bb4 b1=Q 30. Nf4 c6 31. Qe6 N8h6 32. d4 Ng8 33. d5 cxd5 34. Ngh3 d4 35.
Ng1 d3 36. Ngh3 d2 37. Ng1 d1=Q 38. e3 Qdb3 39. Nd5 Qfh5 40. Nc7 d5 41. Nb5 d4
42. Nc7 d3 43. Nb5 d2 44. Na3 d1=R 45. Nc2 Re1 46. Na1 Rf5 47. e4 Rd5 48. e5 f6
49. exf6 Red1 50. Qb6 e5 51. Qe6 e4 52. Qe5 e3 53. Qc7 e2 54. Rc3 e1=B 55. f7
Bd6 56. f8=Q h6 57. Qe7 Qgg5 58. f4 Qg5g6 59. f5 Qgg5 60. f6 Qg5g6 61. f7 Qgg5
62. f8=Q Ne5 63. g4 Qf7 64. h4 h5 65. gxh5 Qgf6 66. Nf3 g5 67. h6 g4 68. h5 g3
69. Qed8 Q6e7 70. h7 Nf6 71. h6 Rg8 72. h8=N g2 73. h7 g1=B 74. Ng6 Q3c2 75. Nb3
Qd3 76. Ba3 Qa1 77. Nc1 Qa2 78. Rb3 Qa1 79. Rb7 Qac3 80. Na2 Bd2 81. Nd4 Qg3 82.
Nf3 Bg5 83. Nd2 Bh4 84. Ne4 R1d2 85. h8=N Bh3 86. Be2 Qee6 87. Rh2 Qgg4 88. Rf2
Qg2 89. Rf3 Qh2 90. Re3 Rc2 91. Bh5 Rg2 92. Qh6 Qg4 93. Bc1 Bgf2 94. Bd2 Be1 95.
Re2 Bef2 96. Be1 Be3 97. Bf2 Bd2 98. Re3 Nf3 99. Ka8 Be7 100. Qe5 Rg7 101. Qb6
Qc4 102. Nd6 Qc3 103. Nc8 Ne8 104. c6 Nc7+ 105. Kb8 Rd8 106. Qb1 Qcb4 107. Nc3+
Ka3 108. Nd1+ Ka4 109. Rd3 Qc3 110. Ne3 Qcb4 111. Nc2 Qc3 112. Na1 Bc5 113. Re3
Qgg3 114. Nf4 Qe6 115. Bf7 Qf6 116. Bg8 Qf7 117. Nd3 Ne1 118. Bg1 Nf3 119. Nf2
Ne1 120. Ne4 Nf3 121. Bf2 Rg5 122. Ng6 Rf5 123. Nf4 Ka3 124. Ne2 Ka4 125. a6 Ka5
126. Nd4 Ka4 127. Qh7 Ka5 128. Ndc2 Ka4
tromp commented 3 years ago

Verified. Thank, @rooklift !